Set -q and it will only show when you find a block or submit a share. So solomining you will only successful blocks
Well, that's wise, but now I cannot see my hashing speed.

That a choice you have to made.
However, the speed never change (from my experience), so once you know what is your speed for your cards, there isn't much point to continue to display it.
I think using ">> log" (or something like that) should give you the full logfile (in linux playing with tail and grep could help you to achieve what you want... but in windows I am totally clueless)
@nomad1109: Thanks for the BTQ, you quadrupled my balance.
both bigjme and djm34 was right. But try this one maybe this will help you bro,