I'm having the exact same problem. I tried it with netscape and IE7, both of which crash when I load up the IDM. I also tried older versions of java to no avail. Firefox also doesn't work, I get the same error I initially got and yes, I set the heap size to values equal to or greater than 256.
you need to set the heap size for the version you are running. if you click the help button on the message box that pops up it explains exactly how to modify this value. i don't recall exactly the string to type..please reply if you still have issues and i will get you a screenshot.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...