incompatible V90 modem upgrades?



New Member
I'm not sure if this is the right forum to ask this question, but I've seen a lot of good advice offered here so why not ask.

I recently upgraded the driver on my Viking K56flex modem to V90. I did this because I was changing over to an ISP that only offered X2 and V90 service.

Overall, my connection speeds are great. I usually connect at around 49k. But I've noticed that my outgoing data seems to be much slower than it used to be. This is especially true during intensive activities such as playing games over the Web or downloading large files. I realize not all 49k connections are equal, but has anybody heard of any problems of incompatibility in V90 upgrades for K56flex and X2 modems?