CPU usage doesn't tally (dual core and XP pro)
Lenovo T61 Core 2 Duo running XP Pro SP3.
Normally lightning fast but sluggish of late.
Task Manager shows 43-44% CPU usage at Idle but System Idle Process shows 98-99%.
"Que?", especially given that "Show process from all users" is ticked.
A potentially connected symptom is that memory usage footprint starts off normal for XP pro with no applications running and just my normal startup processes (about 700MB) but then gradually creeps up and up eventually exceeding the physical memory (2GB).
All the symptoms of something running that doesn't want to be found, but Symantec Antivirus Corporate (up to date definitions) and my armada or protection tools that include Spybot and Hijack this all report "healthy system".
Ideas, please?
TVM