I switched pools thanks. 

Only problem now is that I keep randomly getting these and it seems my khash/sec is being affected by a lot.

[5/25/11 1:48:56 PM] Block 102 found on Radeon HD 4850 (#1)
[5/25/11 1:49:49 PM] Block 103 found on Radeon HD 4850 (#1)
[5/25/11 1:55:28 PM] Block 104 found on Radeon HD 4850 (#1)
[5/25/11 1:56:33 PM] Block 105 found on Radeon HD 4850 (#1)
[5/25/11 1:56:47 PM] Block 106 found on Radeon HD 4850 (#1)
[5/25/11 1:57:22 PM] Block 107 found on Radeon HD 4850 (#1)
[5/25/11 1:59:08 PM] ERROR: Invalid block found on Radeon HD 4850 (#1), possible driver or hardware issue
[5/25/11 1:59:29 PM] Block 108 found on Radeon HD 4850 (#1)
[5/25/11 2:04:22 PM] ERROR: Invalid block found on Radeon HD 4850 (#1), possible driver or hardware issue
[5/25/11 2:04:24 PM] Block 109 found on Radeon HD 4850 (#1)
[5/25/11 2:08:05 PM] ERROR: Invalid block found on Radeon HD 4850 (#1), possible driver or hardware issue
[5/25/11 2:08:05 PM] Block 110 found on Radeon HD 4850 (#1)
[5/25/11 2:08:40 PM] Block 111 found on Radeon HD 4850 (#1)
[5/25/11 2:11:08 PM] ERROR: Invalid block found on Radeon HD 4850 (#1), possible driver or hardware issue

I used the app but I keep getting:

49965/49455 khash/secERROR: Can't connect to Bitcoin: Connection refused
[5/25/11 8:54:24 AM] ERROR: Can't connect to Bitcoin: Connection refused
[5/25/11 8:54:26 AM] ERROR: Can't connect to Bitcoin: Connection refused
[5/25/11 8:54:26 AM] ERROR: Can't connect to Bitcoin: Connection refused
[5/25/11 8:54:30 AM] ERROR: Can't connect to Bitcoin: Connection refused
[5/25/11 8:54:32 AM] ERROR: Can't connect to Bitcoin: Connection refused
[5/25/11 8:54:32 AM] ERROR: Can't connect to Bitcoin: Connection refused

I'm not sure exactly what to do to fix this.