Can't install new apps, all incompatible with Android phone (ZTE Blade) After spending a few moments moving some apps from my phone's internal storage to my SD card, I'm no longer able to download/install apps.

Every time I try to get one (like the Wikipedia app) I get the bellow weird alert, saying that my phone is not compatible with the item I'm trying to download. 



I can update apps already installed, though.

How can I solve this problem? This is my first Android phone (ZTE Blade, commonly known as "a5" in Portugal) and I have no idea how to solve this issue. I have Cyanogenmod installed and all caches have been dumped.

EDIT:
I've simply uninstalled the updates for the Market app, downgrading it to the 'old' Market and it just worked!! I could easily download and install new apps, but when the Market app re-updated itself automatically, I couldn't download/install any apps again.
When the market re-upates itself. Goto:

Settings > Applications > Manage Applications > Market

and select 'clear cache'

Now go back into the market and re-signin with your market account. See if this helps.