I've noticed when switching between applications on my 700p, there is occasionally a minor delay (2 or 3 seconds), accompanied by a series of 4 or 5 audible "clicks".

Any idea what might be causing this? I'm running the following hacks:
* Butler
* Phone Technician
* McPhling
* RNS:: TreoNaviText
* RNS:: TreoSelectText
* ShortCut 5
However, I've played around with selectively disabling them to see if the problem goes away, but no luck yet.