So for a week now I'm experiencing issues that distort the appearance on many programs such as Firefox while dayly use. Ultimately this causes most programs to crash. I pinpointed this to be a hardware issue, since reinstalling or using different operation systems doesn't help. Things I tried so far:
- Reinstall (Ubuntu Gnome 14.04) and different operation systems
- Different graphic card
- Memtest86 (overnight, no errors)
- new hard disk
- overheating test (cpuburn)
None of these changed or help with the issues. How can I get to the bottom of this and retrieve relevant error logs?