Brontosaurus - Yes I have.
On firmware 2.31 (which is what was on them when we originally got them) the mouse was terrible.
The trick to 2.31 is to click on the Synch Mouse button, and then wait until the cursor stops moving COMPLETELY (it goes up down and shakes left-right a fair bit). After that the mouse is perfect - no need to right-drag to align it.
On the newer firmware versions (we are using 2.41B) there is a new mode that requires no synch. You can still use the old "2 cursor mode", but the single cursor version works really well.
The new iLO - integrated on the motherboard with the G2 servers - use a new firmware, which looks pretty good too. Next time you get a HP ProLiant you'll see it. (Of course if this is the poor mouse performance you meant, then no - I can't help!!

)
The mouse will always react slowly, and requires some patience, but to maximise performance, make sure you don't set the resolution too high on the server, and you don't use more than 256 colours. These 2 options make the main difference. Also, it doesn't hurt to turn on 100Mb Full Duplex communications if the switch port can run it.
Try these out - definitely recomment the firmware upgrades. Cheers,
Sam
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