Massive attack of the greys

Over the last few days, I've been getting bad texture load issues, on light use, or heavily used sims. Grey EVERY where. Attributed it to the Release Candidate, but cleared cache, logged back in, same issue. I then attempted to log in using the current main release, same issue.

Oddly enough, ping rates, and bandwith have all been healthy when this has been occuring.

I'm running Mac OS X 10.4.10 on a Rev 1.1 Mac Book Pro.

Model Name: MacBook Pro 15"
Model Identifier: MacBookPro1,1
Processor Name: Intel Core Duo
Processor Speed: 1.83 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache (per processor): 2 MB
Memory: 2 GB
Bus Speed: 667 MHz
Boot ROM Version: MBP11.0055.B08
SMC Version: 1.2f10

Update:

I have not experimented with each client using my wired connection greatly (although the issues appeared to be occurring with regularity while wired) but I've noticed that my wireless connection rate has been dropping as low as 5.5mbs the last 24 hours since I started monitoring it.

No changes in the local environment, so I am some what puzzled. I have my router set up on one of the discrete channels, so the frequency is not shared with any of the other wireless routers in range (most of which appear to be using the default channel 6).

I am using an Linksys/Cisco WRT54G with the DD-WRT2 SP2 third party firmware. Connection rate has not exceeded 24mbs in the last 24 hours.

Looks like this MIGHT be a local network issue - investigations continue.

UPDATE to the update:
Immediately after posting this, xmit rate climbed back up to 54mbs and seems stable again. TP and IM are responding in world, greys still seem prevalent, along with partial loading textures.

an other update, the day has seen my xmit rate holding pretty steady @ 54mbps, still getting terrible greys. Connecting to the wired network did not seem to help. A Quick reboot of my router did not help either.

Reinstalled the RC and it still seems to be occuring.

Anything else I can try?