Mouse Lag after SATA install

[eggrock]

Been using a Logitech cordless (Click!) mouse plugged into a USB port. After install of a SATA HDD I'm getting random lagging, and the button clicks aren't recognized sometimes. Occasionally the pointer will jump to a different part of the screen as well. This happens randomly; I notice it most often in IE and the game I'm playing (Myth: TFL, an OLD game).

Maddening.

Using this hardware:

DFI UT LanParty SLI-DR + 600W PSU (The Enermax SLI recommended PSU, all power connections are used)
a64 3700+ San Diego - no overclock
Maxtor 200GB SATA HDD + WD2000JB HDD
Plextor DVD burner + Samsung CDRW
1Gb Corsair Value select PC3200 (tests good in memtest) 3-3-3-8 1T
BFG 6800GT
Audigy 2 LS
1 printer (USB connection)
1 USB connection to the monitor (2405FPW)

Fresh XP install, current drivers, not much software installed (AV/spyware tools, Office 2000, Photoshop, Nero, Perl, Myth and not a lot else.)

XP settings are all pretty much standard, no tweaks done. No conflicts reported in Device Manager. No errors in Event Viewer.

Fresh batteries in the mouse.

SATA is enabled in BIOS, USB is enabled--tried both enable/disable USB keyboard/mouse settings.

Tried with and without the logitech software.

HDD tests out okay.

Temps are good, ambient is ~67F.

Only thing I can think of doing now is plugging the remote piece into the PS2 port instead of using USB, but it worked fine before so I doubt that's going to help. I haven't moved any hardware around so the distance between the mouse & receiver are the same. No new electrical devices are in the room. No DC'ers live close enough to cause interference.

I'm just about at my wits' end and going with a wired mouse, but I'd really like to keep using cordless if possible.

 

[eggrock]

I'm finding some interesting information. Should've went to newsgroups & Logitech's forums first off. Googling is NOT the answer for looking up "mouse lag", let me tell you.

Logitech forums are full of posts about uncontrollable mouse movement.. Looking.

This was interesting:

XP/USB polling rate = 8ms?

http://tinyurl.com/43hyc

I don't think it has anything to do with my problem, but interesting anyways. And old. Oh well.

[edit] The logitech forums lag worse than the mouse does so this is turning into a fun effing research project.