The last ROM Update for iPaqs 395xx had an unforseen effect: it changed the device's speed from 400mhz to 300mhz... Now HP release an update to restore the device's original speed.
This only applies to users who applied the ROM 1.10 update. Also, the original release of this ROM 1.10 update was removed, and will be posted back when the clock speed problem is fixed there too!