I haven't updated my Eclipse ROM past 1.0 yet but it had the same problem as stock. No amount of data and cache wiping have remedied this problem for me.

So, even though it's a little buggy, I've been using the LiquidSmooth ROM and it will (probably) alleviate the problems you have with text messaging. That's all I can really suggest, unfortunately, since there seem to be very few reports of this problem here so it's hard to know if developers know if this is a real problem or not.