> Thanks for the reply Malke
> This is not a laptop, not a wireless mouse and I have tried another mouse
> that functions ok on other puter.
If the same problem happens using another corded mouse (presumably USB since
this is a new desktop and probably doesn't have ps/2 ports), then something
is running in the background interfering with your mouse clicks. If you
*do* have ps/2 ports, then the last mouse step (as it were) is to use a USB
mouse if you're currently using a ps/2 port and vice versa.
Otherwise, you should answer the First Question of Troubleshooting: what
changed between the time things worked and the time they didn't? If at one
time you didn't have this issue, then you need to figure out what changed
or, if this is fairly recent, do a System Restore to when things were fine.
OTOH, if you always had the problem (which BTW I haven't seen on clients'
HP machines), do some clean-boot troubleshooting to try and narrow down
How to troubleshoot a problem by performing a clean boot in Windows Vista -
Elephant Boy Computers