Ive had the same problem so Ive done what Zubaz suggested and now here's what I get

does that happen  when you uninstall? that is very confusing... I would suggest installing Impulse, and uninstalling from the impulse program, that may get rid of the error... but it definatly needs to be uninstalled and reinstalled...

thx guys for the answers, but it didn´t worked with uninstall and reinstall......but, i tried today and it was fixed from itself, i opened impulse and everything was OK....it was problem , that i verified instalation (on right click on IP in Impulse) and IP showed " it isn´t installed correctly try update"-something similar, and i updated 4.21 version to 4.20 (strange???) and after that update IP wasn´t registered anymore.....but anyway now is cool...thx again....sorry for my bad english

Skinhit...

did you reboot after uninstalling IP?

did you try uninstalling, reboot, reset Impulse data, then checking to which is available?  If still the trial version available - check registrations

have emailed support...will wait and see...thanks

It may due to os prob also ..  some times it ill be incompatible with OS .... so it may occurs ........ try to instal by uninstalling........

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