Sketch Not Uploading

I have the Arduino IDE 1.0.6 installed in Windows XP. I realize this is a dated OS. I have also done a hardware and driver update.

The IDE gives me

avrdude: stk500_getsync(): not in sync: resp=0x00

which basically means that it cannot connect to the board. All the parameters are set correctly(port, board type, etc). This is for a robotics class and our school only has older computers with older OS's. Does anyone know of a way to fix this?

THANKS!

Which arduino board are you using and how are you connecting it?