My phone hates 2G + Sd Card my HTC Wildfire with CM7 - RC4, doesn't like a combination of two things:


Data enabled on a 2G Network
SD Card inserted.


When these two conditions are met, either the phone will slow down to a halt or it will reboot. If it reboots, if I don't remove the SD card it will not detect it, unless I reboot without it in. Or, the SD card will just be undetected and sometimes a notifications pops up telling me "SD Card Removed Unexpectedly"

At my school, my phone network's signal isn't very good due to the building being rubbish and 2G signals are the only thing we get inside the building.

On my old SD card it was 4GB and I think it worked, however my SD card is now 16GB and it doesn't like this. It shouldn't be a problem as it's a ScanDisk (a very reputable make) and I've tried another 16GB card which I sent back due to the issue, so I don't think it's that.

Many thanks to people who can figure out what's up with my phone,

Joe
I would indeed verify first that this is not related to some 3rd party app or any other than stock ROM. For this do a complete reset and try again. Also try with a smaller SD card since 16GB might not be supported by your phone (need to check specs for that, I don't know).

You can make a backup to get it back to your personalized settings quick. 

If you can confirm the stock ROM and default settings do have this bug too you can report this to HTC. Otherwise you'll have to solve it on your own, looking what app/setting is getting this result.