["]

This error is reported from the sketch preprocessor.
There could be several reasons why this happens.
Check your code for strings that are not properly terminated:
Serial.println("done);
which should be  
Serial.println("done");

The other problem that is reported are quotes in comments
Eberhard

FYI: We (silently) fixed this bug for our Arduino Package for Ubunutu 9.10/10.04 .
http://www.arduino.cc/playground/Linux/Ubuntu
"Open..." starts in the users home dir and uses the JFileChooser.

Eberhard

Hi,
this is one of my favourite Arduino bugs. I has been reported again and again over the last years but was never fixed. Well, maybe this year somebody cares about Linux users too....

http://code.google.com/p/arduino/issues/detail?id=39

Eberhard

This is a known bug in the IDE , that (I hope) will be fixed in a future version.
Eberhard

Hi,
this isn't supported.  
More information on this topic and a workaround is to be found here:
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1260904176/0

Its a long thread, you can skip to page 2 where the real problem is tackeled ....
Eberhard

@biagio
You know that your code does not send any data to the device?
You have to send some register-data to the ADXL.
This is not a valid command for the device.  

Code:

Wire.beginTransmission(0x53);
Serial.print("step 1\n");
Wire.endTransmission();

Eberhard

Hi,

I tried my code in another computer and it works properly

How are your two machines different ?
Operating  System?

Eberhard

Hi,
bad news.
On the Linux-USB subsytem error 71 is a  "Protocol error".
If the error does not go away when you use a different cable or use a different USB-Port/Hub it looks like your board (the USB2Serial adapater at least) is damaged.

Eberhard

The FTDI driver is part of the Linux kernel. There is no need to install manually.
Eberhard

Hi,
when a arduino is plugged in the device /dev/ttyUSB0 will be created by the operating system, and it will be removed when the arduino is unplugged.
Test:
Unplug your arduino
Open a console window and list the current devices with

Code:

ls -all /dev/ttyUSB*

plug your arduino into your machine and list the devices again

Code:

ls -all /dev/ttyUSB*

You should now see the device created for the Ardunio.
If not, please check the system log with

Code:

dmesg

It should contain some kind of error report.

Eberhard

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1266552421

Eberhard

Can the IDE run properly in a win 98 SE environment?

I don't think so, I faintly remember there was someone who tried it and gave up.

There are some Linux versions (xubuntu)  that are less demanding and run on older hardware, but for laptops there have been quite often no graphics drivers available.

Eberhard

I almost think your old laptop is down to his knees when XP has finished booting - and the the Java Virtual machine gives it the final blow.

Minimum requirements is hard to tell. The IDE runs fine on a first generation EEE Pc (512 MB Ram) under Kubuntu. This is about the slowest machine you could buy in the last two years.

I wouldn't spend too much time on trying to make this work.
 
Eberhard

Hi,
INT0 is defined in the avr-libc include files. This is not an error caused by the Arduino-IDE.

There is obviuosly something wrong with you installation of the gcc -avr compiler and the avr-libc, because the compiler doesn't have the avr-libc headers in  the default include path.

I don't run Suse, but did your read this article?
http://www.arduino.cc/playground/Linux/OpenSUSE
If you reinstall the whole thing following the steps in the article does it work?

Eberhard

For what it's worth...  I have a radio (a Yaseu VX-1R) that has similar symptoms.  When the battery gets very weak the radio loses all of it's setup information.  After the battery is replaced I have to go through an extensive manual reprogramming procedure to get it working again.  (I stick to Kenwoods or Icoms now.)

The symptoms reported by the OP sound more like  
the device forgot it was a Radio in the first place   ;D

But seriously:
Is anything connected to the pins 0 and 1?
If not you could permanently pull them high with a 10K resistor.
Eberhard