I will also try to run my pc from a differet PSU (on 220volt), so I know if the problem has something to do with the pc, the amps of maybe both...
I will reground everything tomorrow (or maybe tonight, if i have time) and let you guys know what happens...
in meanwhile, if anyone has another idea or solutions, lets hear it
already thanks for the fast reply's
Greetz
Dj NRG