System permission problem

[Guest nforsans]

Hope you can help me again.

I tried to upgrade the Intent Midlet to the latest version, but when I run the cab and install the soft on the device I get the following error:

"Installation was unsuccessful. The program cannot be installed because you do not have sufficient system permission".

What should I do to get these rights? basically, it is a case of replacing a programme in the rom by an updated version of the same programme, but for some reason I am denied writing rights in the rom. Is that correct? Is there anything i can do to get round that?

I am using TMobile UK's original rom 1.21.110.3 and I upgraded the radio to 1.16

Others on other networks have been able to upgrade the intent.

Thanks