Originally Posted by Wolf_Dreams
Your problem is cumulative memory bleed. You get junk files left over after app deletion and eventually all Java powered BB's need their OS to be re-installed or updated. It will make a huge difference.
Also, a battery pull every day or two will help considerably too.
Posted via BlackBerryForums.com Mobile
This is EXACTLY what I thought was happening - only I'm not a phone techie, so wasn't sure!
Another strange thing - updated BBM today, with 7.9mb of memory left - BBM was described as being 2.9mb in size. After installation, only 4.9mb left - does this mean the old BBM wasn't removed??
Can any of you guys direct me to a link to easy to follow instructions, to reinstall the O/S or (as aiharkness suggests) a security wipe?
Many thanks, Guys!!