POWER OF ATTORNEY


	The undersigned, being a person required to file a statement
 under Section 16(a) of the Securities Exchange Act of 1934
(the 1934 Act) and/or Section 30(h) of the Investment Company
Act of 1940 (the 1940 Act) with respect to Global High Income
Dollar Fund Inc. (GHI), Insured Municipal Income Fund Inc. (PIF),
Investment Grade Municipal Income Fund Inc. (PPM), Managed High
Yield Plus Fund Inc. (HYF) and Strategic Global Income Fund, Inc.
(SGL) ( each a Fund), does hereby authorize, designate and appoint
Mark Kemper, Joseph Allessie, Eric Sanders and Keith A. Weller, and
each of them, as his attorney-in-fact to execute and file statements
on Form 3, Form 4, Form 5 and any successor forms adopted by the
Securities and Exchange Commission, as required by the 1934 Act
and the 1940 Act and the rules thereunder, and to take such other
actions as such attorney-in-fact may deem necessary or appropriate
in connection with such statements (including, if necessary, executing
and filing applications to obtain EDGAR codes in order to make required
electronic filings), hereby confirming and ratifying all actions that
such attorney-in-fact has taken or may take in reliance hereon.  This
power of attorney shall continue in effect until the undersigned no longer
has an obligation to file statements under the sections cited above, or
until specifically terminated in writing by the undersigned.

IN WITNESS WHEREOF, the undersigned has duly executed this power of attorney
as of the 3rd day of February, 2006.




						/s/ Alan S. Bernikow
						Alan S. Bernikow



Expiration date:  February, 2009