I am using Android 2.3.3 UNrooted. I am about to switch to SanDisk 16GB SDHC from 8GB storage flash card of same brand, but currently have following problems: 1. Often Android OS forcecloses and restart fixes problem for a while: This happens again and again by touching back button until switched from application or a home button. In emergency system boot don't have option to clear Dalvik's cache, but only regular cache. 2. Android Market v2.3.4 does not update apps: Gets stuck at download progress bar but progress bar is animated. After cancelling automatic download, i can re-download again manually. Should aforementioned problems be taken care of before switching to a higher storage card or after? Additionally how would you go about rectifying aforementioned problems? Should i insert new 16GB SDHC card and format it within Android OS before restoring all data? Should i manually update to latest Police Android Market? I have heard that after Market v3 you can no longer downgrade to previous Market versions. Thank you for help.