When opinions differ widely, It's hard to conclude!

Thanks, I got my answer

Guys I know what are chances in solo mining, and I do not plan to solo mine. I just asked something else! No one actually answered my question, all just say "forget solo mining". I know guys.. I know! Please just tell me, is the solution one of those Hashes which miner keeps to find and count? Or the solution is when a gazzillion of those hashes are calculated?

Which one yields more profit? With same hashing power, mining Bitcoin or Litecoin?

still no answer?

delete this file

%appdata%Roaming\Bitcoin\wallet.dat

Just for getting to know how mining works, I configured  guiminer for solo mining. In the status bar, it show some info like [Difficulty 1, Hashes 42-last at: time]

I know this is a noob/dumb question but please tell me.. when a block is discovered?
Is it when (1.) one of these "Hashes 42" meets the validation requirements OR  (2.)when a required number of hashes are produced? e.g after 1,000,000 hashes..

If it's (1.),  is it possible (in theory) for the first produced hash (Hashes 1) to be the solved block?

My second question: Why in guiminer it says "Difficulty 1"? Isn't it currently 112,628,549?

I need to format my c: drive and install a fresh copy of windows. Is backing up blocks as simple as copying the block folder to another drive and then put it back in? I really don't want to download 12 GB of data again... though in fact it used nearly 30 GB of internet traffic and ended up with 11.42 GB in total.

is it ok to block bitcoin on UDP port and just leave the TCP accessible?

thanks for the replies. i've closed the program on 32 weeks for now. the size of block folder (%appdata%\Bitcoin\blocks) is 5.32 GB, but i'm sure it has used more than 15 GB of internet traffic. where has the rest of it gone?! please don't tell me to check my firewall or other app usage, i know it for certain! is there something like "wasted" in Bittorent?

I wonder this sync thing does ever end? It has used nearly 16 GB of internet traffic and the progress bar is less than 20%!!! 32 weeks behind and every week takes longer time. The last 4 weeks from 37 to 33 took nearly 4 GB of download! and since it has been getting larger week by week so i guess another 1 TB of data is needed for remaining 32 weeks, right?!