Ah - thanks for making it clear!

Your post #7, for example, shows you like trying various 'low-level' hacks/tweaks/mods etc. Even though you uninstall the script, the mod it performed might remain active on your phone (in this specific case with Karam's script I have no idea).

Also you mention overclocking, swappolube etc etc which can all contribute to random problems like the one you mentioned. Modding/hacking/tweaking your phone isn't a bad thing (it's one of the main reasons I bought a N900), but bear in mind that anything low-level you do can have obscure unforseen results, especially when applied in combination. Sometimes it's easy to unexpectedly screw your phone just with a typo...