I'm running on Redhat Linux version 9.0. I'm having a rash of previously working code breaking when module exported symbols no longer get imported to another module that 'uses' them. The situation looks like: main perl file: ... use A; use B; A contains 'use B' main calls function f() in A.pm, which calls function g() in B.pm, which is treated as an undefined method. Running under the debugger, A.pm definitely contains 'use B.pm', but on entry to [A::]f(), I find: DB <<1>> p scalar keys %A:: 9 DB <<2>> use B DB <<3>> p scalar keys %A:: 113 Closer examination shows the A.pm symbol table grew via importation of symbols from B.pm that should already have gotten imported. Is anything like this known to occur in 5.8.0 that could be prevented through an upgrade? Workarounds, diagnostic strategies, anything might help. I'll be glad to try something out and submit the results. This is occurring in a pretty big system and I don't know how to isolate it. If this is the wrong forum I'm having trouble finding the right one, and I have in the past worked with perl5 porters (I was sort of the perl for UTS liason). Best wishes, HalThread Next