I run a specific sequence once a week and it works beautifully for me
1. Open Browser > Menu > Options > Cache Operations: Clear all boxes including pushed content.
2. From homescreen, Options Icon > Security Settings > Memory Cleaning > Menu: Clean Now (also ensure auto-clean is set to disabled)
3. Run Quickpull
This routine works for me without fail, and I only do it once a week. (twice if I have installed a bunch of apps recently)