I have just "pulled" this off the Chinese OPDA site and all credit to its author Tecnologia.
I have tried this on my E65 and it seems to be a little faster than it was before
1- change the date of your mobile to this date
-Month 05
-Day 01
-Year 2005
2- open the calender and make a new to-do entry:-
- topic/subject: Speed
-due date : day 04, month 08, year 05
-priority: High
then do a second to-do entry
-topic/subject : Quokie
-due date: (same date as before)(04/08/2005)
-priority: low
3-confirm both to-do's are entered on the same date then mark the two as done (very important)
4-close the calender & change the date of your mobile back to normal.
Turn mobile off and back on.
Thats it!
5- See if makes any difference to you?
Please give your results and phone model