more feedback:
I have [recently] posted a few screenshots of the missing bottom buttons. Someone replied saying that they disappear when the CPU is loaded with some other process.

My feedback is that it's not the case: started my IT; waited 5 minutes after complete boot to make sure; ran Canola... same problem!

Also, I noticed another program flaw: SOMETIMES (trying to find the cause; yet unsuccessful), when using canola to play local audio, the back button stops working. Note: this is a software problem since it does not respond to neither the onscreen button, the hardware button, or any "left" input over bluetooth (cell phone & keyboard). This problem may occur right after staring canola, or after some time using it.

P.S. metalayer-crawler is disabled; does not affect canola performance AT ALL.
P.P.S. metalayer-crawler is a system process that reads media info (ID3) for the default media player... VERY resource-hungry process for an un-optimized media player.

Btw, Canola's media playback optimization is also mediocre (wish i could say more), since it ofter (once every ~3 min) lags for 1/4 sec on local mp3 playback.

Is there any codec/library I should install to fix this?

thanks

Ilia