The reason for the slowness of response with mouse etc is likely the specs of the machine .... slow processor, slow motherboard, slow memory etc
BTW ..... most wireless dongles these days require USB v2 ports to operate correctly.
I would try that dongle in a powered hub to see if things improved.
Also something you were doing caused the Swap space to be used, although you have 1GB installed memory and the OS is LXDE.
I think you should look to see what is eating up resources.
IIRC, using a memory stick that is capable of running faster than required usually means the memory stick gets throttled back. Just make sure it is compatible memory.
I often use crucial.com to verify memory type etc .... even if I buy elsewhere 
Thanks for this.

Also something you were doing caused the Swap space to be used, although you have 1GB installed memory and the OS is LXDE.
Just to clarify, I'm running KDE. But I agree, something may be eating up swap.
I don't have the system in front of me, but it's An AMD Sempron processor running at about 2.2 or 2.4.
The last version of PCLinuxOS running on that system was 2009. And that was with KDE 3.5. Ran fine. No problems. Then again, no desktop effects and no Chromium running half dozen tabbed pages
I just checked my records and it appears I purchased this system back in 2006. It also booted and ran WinXP on a separate drive. Again, no problems.
I'm going to plug in the additional gig of RAM and see what happens. Although I'm running KDE, I do have LXDE installed. Maybe the additional memory and/or running LXDE will clear the problem.
Will report when I get it back up and running.
