Printer disconnects after using Remote Desktop

After connecting to my home computer remotely from work, and then returning
to my PC at home, I found that it has lost connection to the printer (every
time - not intermittently) - (Note - I haven't used the printer remotely.)
Both systems are XP Pro SP2 and Printer is HP PSC2110 (All in One)
Easy to resolve by switching printer on and off, XP finds it and re-installs
- just very irritating.
However also find a lot of background activity on the PC - not sure what -
so I also find I have to re-boot the PC - also time consuming and irritating.
Both systems are XP Pro SP2 and Printer is HP PSC2110 (All in One)
Does anybody out there know how to resolve this?