It appears that you had a ground issue that was resolved when you installed the motherboard on the new case. HTH, Jose Bharat Ale wrote: > Hi all, > > I'd a problem of mouse not being taken. Replaced mouse, replaced comm port > cables several times, replaced the motherboard, display card, fiddled with > bios settings, IRQ settings and Windows. Had this frustrating headache for 2 > days. > Replaced everything that I could think of even remotely might be affecting > mouse or comm port - but no soln. > > Out of frustration, I replaced the case itself (SMPS incl) and the damn > mouse worked ! > > But I don't know how. I have not been able to figure out what case or SMPS > got to do with mouse since everything else was working fine. Anybody has any > logic into this ? > > Bharat > > Do you want to signoff PCBUILD or just change to > Digest mode - visit our web site: > http://nospin.com/pc/pcbuild.html Do you want to signoff PCBUILD or just change to Digest mode - visit our web site: http://nospin.com/pc/pcbuild.html