AVRISP MkII with Arduino and CodevisionAVR

I´m having a problem with AVRISP MkII programmer. Up until recently I´ve been using a registered version of HP Infotech CodevisionAVR (Version 2.60 Standard) and AVRISP MkII as my embedded developing environment. They´ve been great tools but recently I started getting familiar with Arduino. I worked myself through the Starter Kit of 15 projects and this looks like a great thing to have :). But I also want to keep CodevisionAVR around as an alternative platform.

My problem is that recently I tried to recompile and upload one of my past projects developed with CodevisionAVR into the AtMega8515 using AVRISP MkII. Compiling works well without errors like it´s supposed to but when I try to upload the code into AVR chip, I get the Communication error message regarding USB-cables, Windows USB drivers and Programmer type.

I´ve checked cables and tried different usb-ports. The programmer type is set correctly in CodevisionAVR Chip Programmer menu. AVRISP MkII is present in the Windows Control Panel´s Device Manager under category Jungo. There is also something called Windriver visible in there. The green led on AVRISP MkII turns on when connected into AVR Chip.

This problem appeared recently when I installed Arduino IDE as another development platform, could this problem be caused by it? In Arduino´s Tools->Programmer Menu AVRISP MkII is selected but when I upload sketches into Arduino Mcu, the Arduino UNO Board is directly connected to computer via USB as it´s supposed to. Thus I don´t even use AVRISP MkII (unless the same/similar system is implemented into Arduino PCB:s).

I also tried re-installing Atmel Studio 7.0 via Control Panel´s Programs and Features, but nothing changed.

Can someone help me out please?