For those of you who are running Cyanogen’s nightly, and have been experiencing the signal issues, there’s a fix for you, courtesy of XDA forum member theimpaler747.
The fix gives you more visual bars, since on the default ROM, the max amount of bars that will show up, even with great signal strength, is 3. With this fix, you will have the full 4 bars and hence a more accurate indication of signal.
The zip fixes the visual signal on Cyanogen and all AOSP ROMS. However, note that is should not be flashed if you are running a theme on top of FroYo.
You’ll also need Metamorph (available free from the Market). To download the zip and try out the fix, head on over to the forum thread._________