SXMB _IFR & SLDCHECK troubleshooting

Hi PI Experts,

When running SXMB_IFR transaction from my SAPGUI session on my PI, i get a "start of application: start intregration builder" message without any result.

When running directly using URL from Internet Explorer, all is fine !.

Have you any idea on this problem ?

Another problem : SLDCHECK transaction give me same result : no result on Abap side nor IE side....(it was OK few days ago).

Thanks a lot for your help

Regards

Etienne