Hi Gary; this was a problem for me in Infinite, with the first release of 7.4. It was fixed and all I needed to do was re download the patch and install it., although I did uninstall the offending release/patch  first. Could this be your problem in Xstream?

Adriaan Barel (a.k.a. Vege Mite)
"Morality, like art, means drawing a line someplace." -- Oscar Wilde