Also note that the Stake field will NOT increment permanently. It will only show a value when it is in the process of staking (so 50 blocks, for maturity) and then will drop again. So that field isn't a good way to see if you're staking. In your transaction fields, you'll see stake rewards as transactions (if you've staked).
Thanks, excellent advice! I wasn't sure if rewards would show up as transactions or not

Forgot to add another thing... are all your coins in ONE input or multiple? To help illustrate the difference...
Let's say there are 200 coins total and you have 100. Your stake weight is 50%.
If you have all 100 coins in one input, you have a 50/50 chance on the next block (assuming all 200 coins were the same age)
If you have 50 and 50 inputs, now you have a 25% on each input, while the guy with 100 has a 50% chance
If you have 10/10/.. inputs, now each input has a 5% chance, while the guy with 100 has a 50% chance
All of these bring the same value over time, but smaller inputs = more variation. I try to keep all my coins in one input.